High-hydrophobic, low-bleeding color lake powder, method for preparing same and use thereof

A method for preparing a hydrophobic modified color lake powder, comprising:

• step 1) dispersing a color lake powder in water, and adjusting a pH value of a reacting system to a range of 4 to 5.5 to obtain a first mixture;
• step 2), mixing a first surface treating agent and a first alcohol solvent uniformly to obtain a pre-mixture, adding the pre-mixture into the first mixture, and blending thereof to modify the color lake powder, so as to obtain a second mixture, wherein the first surface treating agent comprises at least one selected from a silane coupling agent, a titanate coupling agent, and a hydrogenated lecithin;
• and
• step 3), separating a solid phase from the second mixture, and then washing, drying and pulverizing the solid phase, to obtain the hydrophobic modified color lake powder, wherein the hydrophobic modified color lake powder has a contact angle of water larger than or equal to 133°,
• wherein in step 2), a mass of the first surface treating agent is 5% of a mass of the color lake powder,
• in step 3), an operation temperature before separating the solid phase from the second mixture is in a range of 60 degrees centigrade to 80 degrees centigrade.